Jamilyn is a distinctive girls' name in United States, ranking #5312 in 1999 with 20 recorded births. The name reached its all-time peak in 2007 with 21 births ranking #6419. Since 1996, the popularity has increased by 81.8%. In 1999, approximately 1 in every 88,689 girls born was named Jamilyn. STABLE Recent data shows the name is currently stable.